## https://yukicoder.me/problems/no/3373

MOD = 998244353

def solve(N, edges):
    degrees = [0] * N
    for u, v in edges:
        degrees[u] += 1
        degrees[v] += 1

    ans = 0
    for u, v in edges:
        x = (degrees[u] - 1) * (degrees[v] - 1)
        x %= MOD
        ans += x
        ans %= MOD
    return ans

def main():
    T = int(input())
    answers = []
    for _ in range(T):
        N = int(input())
        edges = []
        for _ in range(N - 1):
            u, v = map(int, input().split())
            edges.append((u - 1, v - 1))
        ans = solve(N, edges)
        answers.append(ans)

    for ans in answers:
        print(ans)






if __name__ == "__main__":
    main()